Upstream information

CVE-2021-37679 at MITRE

Description

TensorFlow is an end-to-end open source platform for machine learning. In affected versions it is possible to nest a `tf.map_fn` within another `tf.map_fn` call. However, if the input tensor is a `RaggedTensor` and there is no function signature provided, code assumes the output is a fully specified tensor and fills output buffer with uninitialized contents from the heap. The `t` and `z` outputs should be identical, however this is not the case. The last row of `t` contains data from the heap which can be used to leak other memory information. The bug lies in the conversion from a `Variant` tensor to a `RaggedTensor`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/ragged_tensor_from_variant_op.cc#L177-L190) does not check that all inner shapes match and this results in the additional dimensions. The same implementation can result in data loss, if input tensor is tweaked. We have patched the issue in GitHub commit 4e2565483d0ffcadc719bd44893fb7f609bb5f12. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1189423 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP3
  • bazel-skylib1.0.3-source >= 1.0.3-bp153.2.1
  • bazel3.7 >= 3.7.2-bp153.4.1
  • libiomp5 >= 2.6.0-bp153.2.3.1
  • libiomp5-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libiomp5-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow2 >= 2.6.0-bp153.2.3.1
  • libtensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2 >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2 >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2 >= 2.6.0-bp153.2.3.1
  • tensorflow2-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2-doc >= 2.6.0-bp153.2.3.1
  • tensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2-lite >= 2.6.0-bp153.2.3.1
  • tensorflow2-lite-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc-doc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc-doc >= 2.6.0-bp153.2.3.1
 Patchnames:
openSUSE-2022-10014
openSUSE Leap 15.3
  • bazel-skylib1.0.3-source >= 1.0.3-bp153.2.1
  • bazel3.7 >= 3.7.2-bp153.4.1
  • libiomp5 >= 2.6.0-bp153.2.3.1
  • libiomp5-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libiomp5-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow2 >= 2.6.0-bp153.2.3.1
  • libtensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2 >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_cc2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2 >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • libtensorflow_framework2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2 >= 2.6.0-bp153.2.3.1
  • tensorflow2-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2-doc >= 2.6.0-bp153.2.3.1
  • tensorflow2-gnu-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2-lite >= 2.6.0-bp153.2.3.1
  • tensorflow2-lite-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-hpc-doc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc-devel >= 2.6.0-bp153.2.3.1
  • tensorflow2_2_6_0-gnu-openmpi2-hpc-doc >= 2.6.0-bp153.2.3.1
 Patchnames:
openSUSE-2022-10014
openSUSE Tumbleweed
  • tensorflow-lite >= 2.9.1-1.1
  • tensorflow-lite-devel >= 2.9.1-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-12116

SUSE Timeline for this CVE

CVE page created: Mon Aug 16 09:53:32 2021
CVE page last modified: Tue Sep 3 19:20:58 2024